Note: assembled version
A small PCB which adds add a clean -8V. - to improve the hum/noise problems on the SY-1 (THC Version)
and on few SY-1M the coil problem.
note: you must desolder few parts from the pcb and before install this pcb, or buy the "repair service" from me.
a buildguide and BOM is available very soon on www.DSL-man.de